Home / 87,534.18-131,336.91-40,758.30

Finding the Fourth Proportional to 87,534.18, 131,336.91 and 40,758.30

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Solution

The fourth proportional to 87,534.18, 131,336.91 and 40,758.30 is: 61,154.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,534.18 : 131,336.91 = 40,758.30 : x
  2. Step 2: Convert to fraction form
    87,534.18/131,336.91 = 40,758.30/x
  3. Step 3: Cross multiply
    87,534.18x = 131,336.91 × 40,758.30
  4. Step 4: Simplify right side
    87,534.18x = 5,353,069,178.85
  5. Step 5: Solve for x
    x = 5,353,069,178.85/87,534.18
  6. Step 6: Final answer
    x = 61,154.04

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.